The Biden administration demands that TikTok be sold, or risk a nationwide ban
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All of those have a tie back to existing authority held by the federal government. Banning a mobile phone app that shows people digital content doesn’t seem to have a similar connection.
There’s already plenty of software that is banned in various US jurisdictions. The most obvious example is when the US shut down online gambling.
If the government announced tomorrow that they’re planning to ban sliding doors, or Toyota trucks, or standing desks, I’d have the same question. Software vs physical is not the relevant factor here.
Americans don't like Chinese internet companies gobbling their data and yet they are surprised that Europeans don't like it either from American companies.